"Don't push me too far," said the other icily. "Remember I'm infinitely stronger than you."
"But very susceptible to a sliced-up jugular."
"I won't wreck five hundred years of plans, even for you!"
"Not for me," said Alan easily. "For the sake of your throat, Mac old boy."
Mac sighed, and turned the ship gently, for fear of the deadly blade in Alan's remorseless hand, and sent it rocking over the hills inland.
"I'm a weak link," he said bitterly. "A weak link like poor old Grady. I didn't know I'd be so afraid to die."
CHAPTER XII
They landed gently beside the two great silver disks, and Mac sat back and said, "Well," proudly, for it was his first landing in half a millennium. "Now what, Jack the Ripper?"
"Now we go out and talk to them. First we let the gang out of the middle room, though."